Possible Duplicate:
adjust selected File to FileFilter in a JFileChooser
I have a JFileChooser with a FileFilter (txt, doc, odt) and I want to save an existing file.
So I open the file chooser GUI and enter the name for the file to save (e.g. test.doc). After this, I change the file type from the dropdown list to see only e.g. .txt files.
At this time, the file-extension from test.doc should change to test.txt, but how to do it? I cannot add an ActionListener to the file filter.